Joseph taxes



Patented lune I3, |899. J. YATES.

ROTARY ENGINE.

(Application tiled July 15, 189B.) (No MQdel.) 2 Sheets-Sheet l.

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No. 627,038.- Patented lune I3, |899.

- J. YATEs.

l ROTARY ENGINE.

(Application led July 15, 1898.)

(No Modal.)

2 Sheets-Sheet 2.

inn STATES PATENT FFICE.

JOSEPH YATES, OF LONDON, ENGLAND.

ROTARY ENGINE.

SPECIFICATION forming part of Letters IPatent No. 627,038, dated June13, 1899.

lippnmion'iea July 15, 189s.

To all whom t may concern.-

Beit known that I, JOSEPH YATEs, residing at London, in the county ofMiddlesex, England, have invented certain new and useful Improvements inRotary Engines; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention refers to a new or improved rotary engine, essentiallyconsisting of a rotary part, hereinafter termed the rotator, which is ofcylindrical form, mounted axially and concentrically on a shaft carriedon bearings on the end plates of a cylindrical casing within which therotator is located. The rotator is formed with a number of separatechambers opening on the periphery of its cylindrical surface andextending inwardly into the cylinder, but not in a direction at rightangles to such surface, and each chamber has a closed inner end. Thecasing has asteaminlet by which steam passes into a steamchest and byports formed in a bearing-plate of the steam-chest, which plate is incontact with the rotator to each chamber of the latter, as the chambersconsequently pass the bearing-plate, the steam from the chambers beingthen exhausted into the casing, away from which it is conducted by asuitable passage.

The invention refers to the specific combination of the composing parts,which I will now proceed to more particularly describe with reference tothe accompanying drawings.

Figure l is a vertical transverse section of the motor, and Fig. 2 is alongitudinal section of same. `f

Referring to the drawings, A is the rotator, keyed on a shaft B, whichis carried in bearings, Fig. 2, in the end plates O O of a'casing D,surrounding the rotator A, there being aV which the chambers extend intothe body of the rotator. The direction in which the chambers extend isforward of a radial line drawn from the opening of a chamber on thesurface of the rotator to its center, and so much so that the-bases F ofthe chambers in the interior of the rotator arenearly radial. Thechambers may extend longitudinally, as shown at Fig. 2, nearly the wholewidth of the rotator-cylinder A and may be conveniently formed, as thereshown, by ,slotting through the cylinder longitudinallyand then applyingfixed end plates A thereto.

At the upper part of the casing D, I provide an extension D2, fittedwith a fixed cover D5, having a tubular bearing-sleeve in a radial linewith the centerof the rotator A to receive a vertically-movabletube-piece G. This tubepiece G is packed peripherally-say by metalpacking-rings, as shown-to be steam-tight, and carries at its lower enda steam-chest H, with the interior of which the verticallymovable tube Gcommunicates. The lower surface-plate H of the steam-chest I-I issegmental and bears truly upon the circular surface of the rotator,apertures H2 being formed through the segmental bearing-plate H', bywhich steam is admitted to the chambers F as they pass, consecutively,below the steamchest. The apertures may be inclined, as shown, tocorrespond with the direction of inclination of :the entrance to thechambers F in the rotator A.

To prevent the part H being lifted by underneath pressure of steam,set-screws H3 are provided, the points of which bear upon the top ofpart H', as shown. These are set after the parts are hot. A steam-supplypipe (not shown in the drawings) is to bc connected to the cover D3 tosupply the valve-chest H with pressure-steam, and at a convenient partof the casing-say at the lower part-a port J is provided to take off theexhaust-steam, which is thrown into the casing D from the chambers F asthe latter pass away from the segmental plate H of the. steam-chest.

A steam-tight contact is preserved between the segmental plate H and thecircular surface of the rotator not only bythe gravity of thevalve-chest, but by the steam-pressure acting upon its upper surfaces.The valvechest itself is maintained in position by the IOO walls D2,Fig. 1, of the extension of the casing D, and-the valve-chest isrectangular in plan.

The shaft B is continued through a glandpacked bearing of one of the endplates 0,.

casing to receive the shaft of the cylindrical part', and a number ofchambers in thelcylindrical part opening onto the curved surfacethereof, and each extending forwardly of a radial line drawn from thesurface-openings to'the'center of the cylindrical` part, of an extensionof the upper part of the casing, avertically-movablesteam-chest intheextension, a segmental bearing-plate on the lower surface of thesteam-chest to-bear steam-tight on thezcircular surface of thecylindrical part, apertures in the segmental platefcommunieating withthesteam-chest, a Itubular extension on the steam-chest movable verticallyin a sleeve-tube of the casing by which 'steam is applied to thesteam-chest and deliveredlto thefchambers of the cylindrical part astheyconsecutively passr beneath the segmental,

plate, and an exhaust-port in the casing to carry off the exhaust-steamthrown out from the chambers substantially. as set forth.

2. In a rotary engine, the combination with a rotary cylindrical pistonhaving a numberof chambers opening ontoA thefcnrved surface thereof; ashaft passing axially and concentrically through said: piston to whichvsaid piston is fixed; a cylindrical casinginclosing the said piston.;bearings in the side plates of the' casing to receive the said shaft;and an extension of the upper part of the casing; of

, a steam-tight cover fitting said extension and having a bearing-sleevewhose center is in a radial line with respect to the center of the shaftof the piston; a vertically-movable steam-chest 'in the extension; asegmental bearing-plate on the lower surface of the steam-chest to bearsteam-tight on the circular surface of the rotary piston;steam-'passages through said segmental bearing-plate; ,a tubularextension on `-the steam-chest movable in saidbearing-sleeve, by whichsteam is lfdelivered to the steam chest, and thence through the passagesin the segmental bearing-plate to the chambers of the piston as theypass consecutively beneath said plate; and-angexhaust-port` in the casing to carry off the exhaust-steam, substantially as described.

3.'. ln-arotary engine, the combination with a rotary cylindricalpistoniv having a number of chambers opening upon its periphery;acylindrical: casing in'closing said piston and =having bearingsfor saidpiston, and anexgtensionoppositelthe periphery of said-piston; `ofarsteam-t-ightcover fitting said' extension and` having a`bearing-sleevewhose center is in a radial li newith respect to the axisof said piston asteam-chest in-said extension movable therein, andhaving a` segmental bearing-plate making contact with.l the periphery`of the. piston.; steam-passagesthrough saidV segmental beari Lig-plate;la-tubular extension on the steam-chest fitting saidfbearing-sleeve andmovabletherein ina radiali line With respect tothe axis'of: thepiston;meansfor-holding said segmental: plate in'closev relation to the piston;and'. an exhaust-port inthe casing. to carry'oif the exhaust-steam,substantially as described.

r JOSEPH YATES. Witnesses:

FREDERIC GRINn-L, W. LILLYWH-rrn.

